Index Error after user inserts scale value with a comma

[victoralvesgomide]

Describe the bug
When the user is going to create an object, he needs to enter a scale value. If the user tries to enter a fractional value representing decimal places with a comma (,) and not a dot (.), this breaks the system. That way, you are unable to access Collection and My Stuff pages, and also create a new artwork (i.e nothing related to the object you just created).

To reproduce the bug

1. Go to Upload Object page;
2. In the scale form, put in a number separated with a comma;
3. Fill in all of the other forms;
4. Click "Submit" button;
5. Try to access Collection, My Stuff or Create Artwork page.

Expected behavior
The system understands the entered value as a float, handles it, stores it and the user can continue using the app normally.

Screenshots

Please, tell us which device/browser is used when finding the bug:

• OS: Linux Ubuntu 20.04
• Browser: Mozilla Firefox
• Version: 81.0.2

[luiz-hfz]

@pablodiegoss I believe this issue has already been done, close issue.